TRID, transformable furniture that can be used from birth to adulthood, with three different functions: cradle, bouncer and chair. It has two different rockers which give the user comfortable swinging movements and seating experiences. These curvatures are based on the research that a sharper rocker is comfortable for people with a smaller build while a more gentle rocker is comfortable for those with a larger frame. This furniture can be assembled in various shapes by yourself with a hex key, so this can be kept flat when not in use, saving cost and space for replacement. Therefore, the TRID is a multifunctional piece of furniture which can be continuously utilized by changing the application to the one suited to the growing process of a human.